参数资料
型号: LT3682EDD#PBF
厂商: Linear Technology
文件页数: 2/24页
文件大小: 0K
描述: IC REG BUCK ADJ 1A 12DFN
标准包装: 121
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.8 V ~ 20 V
输入电压: 3.6 V ~ 36 V
PWM 型: 电流模式,混合
频率 - 开关: 250kHz ~ 2.2MHz
电流 - 输出: 1A
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 12-WFDFN 裸露焊盘
包装: 管件
供应商设备封装: 12-DFN
产品目录页面: 1332 (CN2011-ZH PDF)
LT3682
ABSOLUTE MAXIMUM RATINGS
(Note 1)
PIN CONFIGURATION
V IN , RUN/SS Voltage (Note 2) …….……………. ....60V
BOOST Pin Voltage …………………………..…….50V
BOOST Pin Above SW Pin …………………..……..30V
FB, R T , V C Voltage ......................................................5V
SYNC …………………………….………….……. 20V
BD and PG Voltage ..…….………………..……….. 30V
V C
FB
PG
GND
BD
BOOST
1
2
3
4
5
6
TOP VIEW
13
12 V IN
11 SYNC
10 R T
9 RUN/SS
8 SW
7 DA
Operating Junction Temperature Range (Notes 3 and 6)
LT3682E ……………….………….. . ? 40°C to 125°C
LT3682I ……………………………. ? 40°C to 125°C
Storage Temperature Range ………….. ? 65°C to 150°C
ORDER INFORMATION
DD PACKAGE
12-LEAD (3mm 3mm) PLASTIC DFN
θ JA = 43°C/W
EXPOSED PAD (PIN 13) IS PGND, MUST BE SOLDERED TO PCB
LEAD FREE FINISH
LT3682EDD#PBF
LT3682IDD#PBF
TAPE AND REEL
LT3682EDD#TRPBF
LT3682IDD#TRPBF
PART MARKING*
LFDW
LFDW
PACKAGE DESCRIPTION
12-Lead (3mm × 3mm) Plastic DFN
12-Lead (3mm × 3mm) Plastic DFN
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
Consult LTC Marketing for parts speci?ed with wider operating temperature ranges. *The temperature grade is identi?ed by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based ?nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel speci?cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The l denotes speci?cations which apply over the full operating temperature
range, otherwise speci?cations are at T A = 25°C, V IN = 10V, V RUN /SS = 10V, V BD = 3.3V unless otherwise noted. (Note 3)
PARAMETER
Minimum Operating Voltage
CONDITIONS
V BD = 3.3V
V BD < 3.0V
l
l
MIN
TYP
3.4
3.4
MAX
3.6
4.3
UNITS
V
V
V IN Overvoltage Lockout
l
36
39
41
V
Quiescent Current from V IN
Quiescent Current from BD Pin
V RUN/SS = 0.2V
V RUN/SS = 10V, V BD = 3.3V, Not Switching
V RUN/SS = 10V, V BD = 0V, Not Switching
V RUN/SS = 0.2V
V RUN/SS = 10V, V BD = 3.3V, Not Switching
l
l
0.01
35
90
0.01
55
0.5
60
160
0.5
100
μA
μA
μA
μA
μA
Minimum BD Pin Voltage
V RUN/SS = 10V, V BD = 0V, Not Switching
0
2.8
5
3
μA
V
Feedback Voltage
l
792
780
800
800
808
812
mV
mV
FB Pin Bias Current (Note 4)
FB Voltage Line Regulation
Error Amp g m
FB Pin Voltage = 800mV
3.6V < V IN < 36V
I VC = ± 1.5μA
l
5
0.001
430
80
0.005
nA
%/V
μS
Error Amp Voltage Gain
1300
V/V
3682f
2
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